<template>
  <div>
    <!-- 面包线导航 -->
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <!-- 将搜索框绑定参数的query属性上 -->
          <el-input
            placeholder="请输入内容"
            class="input-with-select"
            v-model="queryInfo.query"
            clearable
            :clear="getGoodsList()"
          >
            <el-button slot="append" icon="el-icon-search" @click="getGoodsList()"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addGoods">添加商品</el-button>
        </el-col>
      </el-row>
      <el-table :data="goodsList" style="width: 100%">
        <el-table-column type="index"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column label="商品价格(元)" prop="goods_price" width="100px"></el-table-column>
        <el-table-column label="商品重量" prop="goods_weight" width="80px"></el-table-column>
        <el-table-column label="创建时间" prop="upd_time" width="180px">
          <template slot-scope="scope">{{scope.row.upd_time | dateFormat}}</template>
        </el-table-column>
        <el-table-column label="操作" width="200px">
          <template slot-scope="scope">
            <el-button type="primary" size="mini">编辑</el-button>
            <el-button type="danger" size="mini" @click="deleteGoods(scope.row)">删除</el-button>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页按钮 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[5, 10, 20, 40]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>
    </el-card>
  </div>
</template>
<script>
export default {
  data() {
    return {
      // 列表查询参数
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      //   商品列表
      goodsList: [],
      //   数据条数
      total: 0
    }
  },
  created() {
    this.getGoodsList()
  },
  methods: {
    //   点击添加按钮
    addGoods() {
      this.$router.push('/goods/add')
    },
    //   点击删除按钮是
    async deleteGoods(row) {
      var result = await this.$confirm(
        '此操作将永久删除该商品, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch(err => err)
      //   console.log(result)
      if (result !== 'confirm') {
        return this.$message('操作取消')
      }
      // 圈定删除
      var { data: res } = await this.$http.delete(`goods/${row.goods_id}`)
      if (res.meta.status !== 200) {
        return this.$message.error('删除失败')
      }
      this.$message.success('删除成功')
      //   重新调用
      this.getGoodsList()
    },
    //   页数发生变化时
    handleCurrentChange(newpage) {
      this.queryInfo.pagenum = newpage
      this.getGoodsList()
    },
    //   handleSizeChange
    handleSizeChange(newsize) {
      this.queryInfo.pagesize = newsize
      this.getGoodsList()
    },
    // 获取所有的商品列表
    async getGoodsList() {
      // 调用接口
      var { data: res } = await this.$http.get('goods', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) {
        return this.$message.error('获取商品列表失败')
      }
      //   console.log(res.data)
      this.total = res.data.total
      // 成功后将数据放入列表中
      this.goodsList = res.data.goods
    }
  }
}
</script>
<style lang="less" scoped>
</style>
